Cleaning brush



FIG. 1 is a left side, rear, top perspective view of the cleaning brush showing my new design, with the cleaning brush oriented vertically;

FIG. 2 is a left side elevational view thereof;

FIG. 3 is a right side elevational view thereof;

FIG. 4 is a front elevational view thereof;

FIG. 5 is a rear elevational view thereof;

FIG. 6 is a top plan view thereof;

FIG. 7 is a bottom plan view thereof;

FIG. 8 is a left side, front, top perspective view thereof;

FIG. 9 is an enlarged view of the brush region circled as 9 within FIG. 1; and,

FIG. 10 is an enlarged view of the brush region disposed within the rectangular box 10 of FIG. 2. 

CLAIM The ornamental design for a cleaning brush, as shown and described. 